PRAL and diabetes mellitus: Higher PRAL was associated with an increased risk of type 2 diabetes after adjustment for diabetes risk factors (HR [95% CI] for highest vs lowest quintile was 1.26 [1.16, 1.36], ptrend <0.0001 for NHS, 1.33 [1.20, 1.48], ptrend <0.0001 for NHS2 and 1.29 [1.16, 1.44], ptrend <0.0001 for HPFS).